Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1989-03-27
1990-12-04
Nielsen, Earl
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
528370, 528491, 528493, 528494, 528496, C08G 6440
Patent
active
049755250
ABSTRACT:
Discrete, non-agglomerating particles of polyalkylene carbonate are produced by solvent
on-solvent precipitation using certain solvent
on-solvent systems. The free-flowing particles obtaine are from 30 to 3000 microns in diameter and are suitable for use in a variety of applications, particularly the preparation of foamed articles.
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Cannarsa Michael J.
Hostetler Donald E.
Kesling, Jr. Haven S.
Sun Hsiang-Ning
ARCO Chemical Technology, Inc.
Harper Stephen D.
Nielsen Earl
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